External oven for a wood-burning stove



FIG. 1 is a perspective view showing the top, left side and front of an external oven for wood-burning stove, showing my new design;

FIG. 2 is a perspective view showing the right side, bottom, and back thereof;

FIG. 3 is a front elevational view, at an enlarged scale, thereof, and

FIG. 4 is a right side elevational view, at an enlarged scale, thereof. 

The ornamental design for an external oven for a wood-burning stove, as shown and described. 